Machine for separating solutions from crushed ores.



E. P. LYNCH.

MACHINE FOR SEPARATING SOLUTIONS FROM GRUSHBD ORES.

- APPLICATION FILED JUNE 28, 1909. 985,61 1 Patented Feb. 28, 1911.

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E. P. LYN CH.

MACHINE FOB SEPARATING SOLUTIONS FROM GBUSHED GEES.

APPLICATION rILnn JUNE 21;, 1909.

985,61 1 Patented Feb. 28, 1911.

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7 1 Idea-arm! PL M1 NITE l EDWARD I. LYNCH, 015 LOS ANGELES, CALIFORNIA.

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Specification of Letters Patent.

Patented Feb. 28, 1911.

Application filed June 28, 1909. Serial No. 504,868.

To all whom it may concern:

Be it known that I, EDWARD P. LYNoH, a citizen of the United States, anda resident of Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented certain new and usefullmprovements in Machinesfor Separating Solutions from Crushed Ores, the invention relating tomachinery employed in the separation of fluids or fluid solutions fromsubstances which they may be holding in suspension or with which theyare intimately mingledfor instance, the separation of cyanid solutionfrom finelycrushed or slimy ore after the values have been taken up byit.

I attain this object by mechanisms illustrated in the accompanyingdrawings in which,--

Figure 1 is a top view of the machine. Fig. 2 is a vertical sectionthrough the line m-w Fig. 1. Fig. 3 is a vertical projection from g to yFlg. 1. Fig. 4 is a vertical section through the tray. Fig. 5 is detailof a section of the members of the filtering device and method offorming an air-tight connection between the tray and filter. Fig.

6 shows a section of the parts forming the filtering device. Fig.- 7 themethod of securing the-filter cloth to its supporting frame.

Fig. 8, feed ing sequence of o deflecting shield and its operatingparts. Fig. 9, detail of frictionless and air tight revolving pipejoint.

Similar letters and numbers refer to similar parts throughout theseveral views.

The mechanism is adapted to the followration while making a circult.First: fee ing into trays horizontally and reversibly mounted on a framemoving horizontally and continuously around a center, determinedportions of pulp. Second by means of filtering devices in each tray andthe action of a suitably connected vacuum pump, producing suctioneffects beneath the filter to expedite the separation of the fluidportion of the pulp. Third: by means of appliances, to flow over theresidue on the filter, weak solutions or washwater or both, to forcefrom it the solution that it may contain as moisture. Fourth to cut outthe suction effects, reverse the tray, forcing under the filter air,steam or water,to clean the residue from it, supplementing the above andsubstituting therefor as may be necessary, suitably arranged upwardimpinging jets of water to clean or aid in cleaning the downturnedfilter surface. Fifth: then returning the tray to itsnormal position inreadiness for another charge by a movement thereverse of that whichplaced it top downward.

As the crushed ores or. material from which solution must be separatedmay be silicious or clayey giving up liquids with ease or greatdifliculty the daily capacity of my mechanism will depend on the natureof the material that is to be treated, it fixing the rate of travel ofthe trays and the quantity placed in them.

The apparatus Figs. 1 and 2 by which I accomplish this work consists ofa series of horizontally placed trays 1 mounted on a frame 2 which issupported by and turns horizontally around a pedestal 3, the travel ofthe frame and trays being effected by applying power to the sheave 4, orby any of the means in common use. The trays -1 are connected to frame 2by supports 6 and 7 which have at their upper ends hearings in which thegudgeons 8 and 9 secured to the tray 1, can turn, so as to make tray 1reversible. A toothed wheel 10 on. the end of gudgeon 8 of each trayengages at one point in the travel of the tray when making its circuit,with the toothed projections 11 on the piece 12 Fig. 3, which turns thetray up-. side down as shown at 1 Figs. 1 and 2. A further travel of thetray causes 10 to engage the projections 13 on piece 14 with the effectof turning the tray back to its original position; the parts 12 and 14:are firmly secured to the fixed posts 29-29.

The trays 1 are divided into two compartments by a filtering deviceFigs. 4 and 5, made up of a filtering material 15, which is supported bythe frame 16, and screen 17, and held in'its place in the tray by thesto s 17 The upper compartment 18 is for tl ie charge of pulp, the lower19, which must be air tight when the filter is covered with plup, isthrough the valve 25 connected by means of hose 20 and pipes 21, 22 and23 through head 26 to a vacuum pump, not shown, or to the tank 24 fromwhich the air can be exhausted by a pump. The object being to exhaust atproper time'the air fromcross-head 7) coming in contact with the pins 1a, a a, a adjustably secured to 27, which, held in place by arms 2828,secured to the post 2929 is held rigidly over the tray 1 and frame 2traveling beneath; so that when each tray in the course of its travel,has its filter covered with pulp, the pin a coming in contact with anarm of the cross-bars 6, opens up the connection between the compartment19 and the vacuum pump. When separation of the fluid is complete andfilter is ready to be cleaned, the pin a closes connection to pump andopens connection to a supply of air, steam or water which through theplpes 30 and 31 and properly arranged ports in 25, have access to 19 inorder to exert a pressure through the filter to clean from it the waste.When tray 1 is being reversed,

- jets of water through pipe 32 may be used to assist in cleaning thefilter. When tray 1 is turned to its normal position pin a turns thevalve stem and opens a waste port to let any water that may be in 19escape, pin a will close the waste leaving the tray ready to receiveanother charge.

Pipe 33 which can be in duplicate, is adjustably secured to andsupported by a .permanent fixture 34, forms the means through which washwater or weak solution and wash water can be flowed over the residue inthe tray, to wash from it the value that may re- .main with the solutionthat is held up as moisture. The supply of wash water can be adjusted bya valve or a valve stem operated by the traveling frame 2.

Fig. 8 represents a section of the feeding apparatus made up of adistributing pipe 35, deflecting shield 40, which is supported 1nbearings 41. To 40 is secured a crank arm 42, which is actuated throughthe lever 43 by the moving parts beneath 1t; contact with the tray turnsthe shield up and over deflecting the feed into the coming tray, contactwith another moving part returns the shield to its original position inreadiness for the next oncoming tray.

- Fig. 4 shows a vertical section of tray 1 with pivotal gudgeons 8 and9, the tray 1 has compartments 18 and 19 formed by the filtering devicewhich is made up of parts as follows: Outside frame 16 and cross-support16 which carries the wire screen over which a filtering material 15 isplaced, and is secured to the outside frame 16 by means of a strong cordor wire 15 by which it is'sewed to the frame substantially shown inFigs. 5 and 7. The filtering frame is made slightly smaller than thetray so that a narrow space shown in Fig. 5, is between the frame 16 andthe side of tray in which a sealing substance 37 is placed to make anair tight connection between the two.

Fastened to 8 is a spring 38 which engages with the support 6 in adepression on its ines5,c1 1

side face in order to hold the tray in a horizontal position when it isupright; and spring 39 secured to 8 engaging in the same depressionholds the tray level when reversed. The hose connection 20 is of suchlength that it will permit the tray to be reversed.

In view of the need of having air tight connections between the traysand vacuum pump, I form the upper section of the stationary pipe 23 Fig.2 which leads to the vacuum tank 24 or to a vacuum pump not shown of twoparts, an outer pipe 22 and an inner one 22', making a deep cup intowhich is placed the pipe 21 which is integral with the head 26. The cupso formed is of such depth and is filled with quicksilver suflicient tomake an air tight joint when under vacuum effects, a: :1: representingmercury limits when it is under vacuum stress and y 3/ when not. SeeFig. 9.

I claim- 1. A separating machine comprising a series of radial filteringtrays, means for rotating the trays, suction means, a flexible pipeconnecting each tray to the said means and means at one point of thetravel of the tray for reversing it and at another point for turning itbackward to normal position.

2. In a machine of the class described, a series of radially andpivotally mounted trays arranged to travel around a common center, eachtray having an upper and lower compartment, radial flexible pipesconnecting the trays through a valve to a common plpe" center in whichsuction effects can be maintamed, means to open at one P01131011 of eachtrays travel connections so as to permit suction efiects in one of thecompartments, and at another point in the trays travel to close the traycompartment to the suction efiect.

3. In a machine of the class described, a series of trays mounted totravel around a common center each tray having a chamber in whichsuction effects can be produced through connections to a common pitraveling with the trays, and means to orm an tir tight joint betweenthis. traveling pipe and a stationary continuation thereof consisting ofa deep cup like pipe section which forms the upper extension of thestationary pipe; the cup so formed containing quicksilver into which themoving pipe is partially immersed.

4. In a machine of the clam described, a series of trays radially andpivotally mounted and arranged to travel around a common center, havingfiltering devices, which form in each tray two compartments, in one ofwhich suction effects can be produced, means means to upset the tray atanother point, signature in presence of two witnesses, this nlileans hfor applying cleaning nlaterial 22d day of May, 1909. t roug t e suctionconnection to t e tra and means for turning back each tray beforz EDWARDLYNCH 5 01' as it completes its circuit to its normal Wit position. J.C. FARKNER,

In testimony whereof I have afiixed my KATHERINE FOREMAN.

